SBOSA45C
february 2022 – may 2023
TMP1826
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Revision History
5
Description (cont.)
6
Device Comparison
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
1-Wire Interface Timing
8.7
EEPROM Characteristics
8.8
Timing Diagrams
8.9
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Power Up
9.3.2
Power Mode Switch
9.3.3
Bus Pullup Resistor
9.3.4
Temperature Results
9.3.5
Temperature Offset
9.3.6
Temperature Alert
9.3.7
Standard Device Address
9.3.7.1
Unique 64-Bit Device Address and ID
9.3.8
Flexible Device Address
9.3.8.1
Non-Volatile Short Address
9.3.8.2
IO Hardware Address
9.3.8.3
Resistor Address
9.3.8.4
Combined IO and Resistor Address
9.3.9
CRC Generation
9.3.10
Functional Register Map
9.3.11
User Memory Map
9.3.12
Bit Communication
9.3.12.1
Host Write, Device Read
9.3.12.2
Host Read, Device Write
9.3.13
Bus Speed
9.3.14
NIST Traceability
9.4
Device Functional Modes
9.4.1
Conversion Modes
9.4.1.1
Basic One-Shot Conversion Mode
9.4.1.2
Auto Conversion Mode
9.4.1.3
Stacked Conversion Mode
9.4.1.4
Continuous Conversion Mode
9.4.2
Alert Function
9.4.2.1
Alert Mode
9.4.2.2
Comparator Mode
9.4.3
1-Wire Interface Communication
9.4.3.1
Bus Reset Phase
9.4.3.2
Address Phase
9.4.3.2.1
READADDR (33h)
9.4.3.2.2
MATCHADDR (55h)
9.4.3.2.3
SEARCHADDR (F0h)
9.4.3.2.4
ALERTSEARCH (ECh)
9.4.3.2.5
SKIPADDR (CCh)
9.4.3.2.6
OVD SKIPADDR (3Ch)
9.4.3.2.7
OVD MATCHADDR (69h)
9.4.3.2.8
FLEXADDR (0Fh)
9.4.3.3
Function Phase
9.4.3.3.1
CONVERTTEMP (44h)
9.4.3.3.2
WRITE SCRATCHPAD-1 (4Eh)
9.4.3.3.3
READ SCRATCHPAD-1 (BEh)
9.4.3.3.4
COPY SCRATCHPAD-1 (48h)
9.4.3.3.5
WRITE SCRATCHPAD-2 (0Fh)
9.4.3.3.6
READ SCRATCHPAD-2 (AAh)
9.4.3.3.7
COPY SCRATCHPAD-2 (55h)
9.4.3.3.8
READ EEPROM (F0h)
9.4.3.3.9
GPIO WRITE (A5h)
9.4.3.3.10
GPIO READ (F5h)
9.4.4
NVM Operations
9.4.4.1
Programming User Data
9.4.4.2
Register and Memory Protection
9.4.4.2.1
Scratchpad-1 Register Protection
9.4.4.2.2
User Memory Protection
9.5
Programming
9.5.1
Single Device Temperature Conversion and Read
9.5.2
Multiple Device Temperature Conversion and Read
9.5.3
Register Scratchpad-1 Update and Commit
9.5.4
Single Device EEPROM Programming and Verify
9.5.5
Single Device EEPROM Page Lock Operation
9.5.6
Multiple Device IO Read
9.5.7
Multiple Device IO Write
9.6
Register Map
9.6.1
Temperature Result LSB Register (Scratchpad-1 offset = 00h) [reset = 00h]
9.6.2
Temperature Result MSB Register (Scratchpad-1 offset = 01h) [reset = 00h]
9.6.3
Status Register (Scratchpad-1 offset = 02h) [reset = 3Ch]
9.6.4
Device Configuration-1 Register (Scratchpad-1 offset = 04h) [reset = 70h]
9.6.5
Device Configuration-2 Register (Scratchpad-1 offset = 05h) [reset = 80h]
9.6.6
Short Address Register (Scratchpad-1 offset = 06h) [reset = 00h]
9.6.7
Temperature Alert Low LSB Register (Scratchpad-1 offset = 08h) [reset = 00h]
9.6.8
Temperature Alert Low MSB Register (Scratchpad-1 offset = 09h) [reset = 00h]
9.6.9
Temperature Alert High LSB Register (Scratchpad-1 offset = 0Ah) [reset = F0h]
9.6.10
Temperature Alert High MSB Register (Scratchpad-1 offset = 0Bh) [reset = 07h]
9.6.11
Temperature Offset LSB Register (Scratchpad-1 offset = 0Ch) [reset = 00h]
9.6.12
Temperature Offset MSB Register (Scratchpad-1 offset = 0Dh) [reset = 00h]
9.6.13
IO Read Register [reset = F0h]
9.6.14
IO Configuration Register [reset = 00h]
10
Application and Implementation
10.1
Application Information
10.2
Typical Applications
10.2.1
Bus Powered Application
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.2
Supply Powered Application
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.3
UART Interface for Communication
10.2.3.1
Design Requirements
10.2.3.2
Detailed Design Procedure
10.3
Power Supply Recommendations
10.4
Layout
10.4.1
Layout Guidelines
10.4.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
NGR|8
MPDS404A
DGK|8
MPDS028E
Thermal pad, mechanical data (Package|Pins)
NGR|8
QFND688B
Orderable Information
sbosa45c_oa
sbosa45c_pm
2
Applications
Factory automation and control
Appliances
Medical accessories
CPAP machines
Battery charger ICs
EV charging infrastructure
LED lighting
Temperature transmitters
Cold chain